Five years ago, Claire Fletcher escaped her abductor. But some scars never fade, and surviving was just the beginning...

When Claire sees a car full of children careen into a river, she rushes to the rescue. But the driver, a mother named Leah Holloway, prefers to drown. For Claire and her ex, Detective Connor Parks, it doesn't add up. What would motivate a woman with a beautiful family and a successful career to resort to such unspeakable extremes? What Connor finds out confirms Claire's suspicions of something dreadful behind Holloway's picture-perfect facade: a link between the terrified mother and a serial strangler targeting Sacramento soccer moms.

As Claire and Connor are drawn back together, their investigation leads them to unearth everything Holloway was hiding. What they find could be the only way to stop a killer from striking again.